ND-20292

CHAPTER 2

APRIL, 1990

3.LCR data input is done from an NEC PC8300

portable computer or, NEC Powermate, IBM AT/XT.

For LCR programming, refer to Chapter 7 of the

Installation Service manual.

SECTION 250

POWER SUPPLY INSTALLATION

250.1PSE-AD-1 PSU (See Figure 200-32)

NOTE: Before proceeding, ensure the Power Line

Cord is not plugged into the AC receptacle Figure 200-32 Installation of PSE-AD-1 PSU and the system AC power switch located in

the left front side of the ESE-32B-1 CCU, (just above the card slots), is in the OFF (down) position. The three prong, AC Power

Line Cord is factory provided and is connected to the terminal block located at the left side of the ESE-32B-1 CCU.

A.Remove the four mounting screws (located at the top and bottom of the PSU slot), in each CCU. Place the screws aside for later PSU installation.

B.Install a PSE-AD-1 PSU into the PSU slot in each CCU, as shown in Figure 200-32, making sure its power switch is in the OFF position.

C.Secure each PSU with the four screws previously removed in Step A.

D.Two cables are provided on each PSE-AD-1 PSU. One is a 3 pin connector ended for AC input, the other is a 6 pin connector ended DC output.

Connect the AC cable into any of the AC connectors (J6- JS) located immediately above the corresponding ESE-32B-1 CCU card slots. (See Figure 200-33).

Connect each DC IN power cable of each PSUto the 6

pin (54) connector located immediately above its corresponding CCU. (See Figure 200-33).

E.Plug the three-prong AC power line cord into the

117V AC receptacle and check the DC output

 

 

 

voltages, which can be read on the corresponding

 

 

 

6 pin connector (54) of each CCU or at the CPU

 

 

I

and MMC test points, in accordance with Figure

 

 

 

 

 

200-38.

Figure 200-33

Connection of PSU Cable

‘/

 

 

 

200 ” 32

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NEC nd-20292 manual Section Power Supply Installation